Display control device, display system, and display control method

Abstract

The display control device includes a peripheral information acquisition unit that acquires peripheral information around the own vehicle, and a preceding vehicle information acquisition unit that acquires preceding vehicle information of a preceding vehicle traveling in a lane ahead of the own vehicle based on the surrounding information; an adjacent vehicle information acquisition unit that acquires adjacent vehicle information of an adjacent vehicle traveling in an adjacent lane adjacent to the driving lane based on the surrounding information; an effect calculation unit for calculating effect information of the slipstream for the vehicle, and based on the effect information, the effect of the slipstream for the preceding vehicle and the adjacent vehicle is moved toward the rear of the vehicle from the preceding vehicle display unit and the adjacent vehicle display unit; and a display control unit that controls display by animation.

What is claimed is: 
     
         1 . A display control device comprising:
 a processor; and   a memory storing instructions that cause the processor to
 acquire peripheral information around a host vehicle from a camera mounted on the host vehicle, 
 acquire a size of a preceding vehicle traveling ahead of the host vehicle in a traveling lane of the host vehicle based on the peripheral information, 
 acquire a size of an adjacent vehicle traveling ahead of the host vehicle in an adjacent lane located on a right side or a left side of the traveling lane based on the peripheral information, 
 calculate an effect of a slipstream for the preceding vehicle and the adjacent vehicle based on the size of the preceding vehicle and the size of the adjacent vehicle, and 
 cause a head-up display device mounted on the host vehicle to project an image onto a windshield of the host vehicle, the projected image including images of the preceding vehicle, the adjacent vehicle, and the host vehicle, and further including an animation representing the effect of the slipstream based on the calculated effect of the slipstream, wherein 
 the animation includes
 first marks displayed on the windshield and each having a linear shape extending on the windshield in a direction from the image of the preceding vehicle toward a lower side of the windshield, and 
 second marks displayed on the windshield and each having a linear shape extending on the windshield in a direction from the image of the adjacent vehicle toward the lower side of the windshield, 
 
 the displayed first marks move on the windshield from a position of the preceding vehicle toward the lower side of the windshield, 
 the displayed second marks move on the windshield from a position of the adjacent vehicle toward the lower side of the windshield, and 
 a moving speed of the displayed first marks and a moving speed of the displayed second marks increase as the effect of the slipstream increases. 
   
     
     
         2 . The display control device according to  claim 1 , wherein more of the first marks and the second marks are displayed in the animation as the effect of the slipstream increases. 
     
     
         3 . The display control device according to  claim 1 , wherein the instructions further cause the processor to
 acquire a speed of the preceding vehicle and a speed of the adjacent vehicle based on a speed of the host vehicle, a distance from the host vehicle to the preceding vehicle, and a distance from the host vehicle to the adjacent vehicle that are detected by sensors mounted on the host vehicle, and   calculate the effect of the slipstream for the preceding vehicle and the adjacent vehicle based on the size and the speed of the preceding vehicle and the size and the speed of the adjacent vehicle.   
     
     
         4 . The display control device according to  claim 1 , wherein the instructions further cause the processor to control an operation of the head-up display device to project the first marks on both sides of the image of the preceding vehicle and the second marks on both sides of the image of the adjacent vehicle. 
     
     
         5 . The display control device according to  claim 1 , wherein
 the instructions further cause the processor to control an operation of the head-up display device to project an image of the traveling lane and an image of the adjacent lane,   the first marks are displayed on the windshield to extend along the image of the traveling lane, and   the second marks are displayed on the windshield to extend along the image of the adjacent lane.   
     
     
         6 . A display system comprising:
 the display control device according to  claim 1 ; and   the head-up display device.   
     
     
         7 . A display control method comprising:
 acquiring peripheral information around a host vehicle from a camera mounted on the host vehicle;   acquiring a size of a preceding vehicle traveling ahead of the host vehicle in a traveling lane of the host vehicle based on the peripheral information;   acquiring a size of an adjacent vehicle traveling ahead of the host vehicle in an adjacent lane located on a right side or a left side of the traveling lane based on the peripheral information;   calculating an effect of a slipstream for the preceding vehicle and the adjacent vehicle based on the size of the preceding vehicle and the size of the adjacent vehicle; and   causing a head-up display device mounted on the host vehicle to project an image onto a windshield of the host vehicle, the projected image including images of the preceding vehicle, the adjacent vehicle, and the host vehicle, and further including an animation representing the effect of the slipstream based on the calculated effect of the slipstream, wherein   the animation includes
 first marks displayed on the windshield and each having a linear shape extending on the windshield in a direction from the image of the preceding vehicle toward a lower side of the windshield, and 
 second marks displayed on the windshield and each having a linear shape extending on the windshield in a direction from the image of the adjacent vehicle toward the lower side of the windshield, 
   the displayed first marks move on the windshield from a position of the preceding vehicle toward the lower side of the windshield,   the displayed second marks move on the windshield from a position of the adjacent vehicle toward the lower side of the windshield, and   a moving speed of the displayed first marks and a moving speed of the displayed second marks increase as the effect of the slipstream increases.   
     
     
         8 . The display control method according to  claim 7 , further comprising:
 acquiring a speed of the preceding vehicle and a speed of the adjacent vehicle based on a speed of the host vehicle, a distance from the host vehicle to the preceding vehicle, and a distance from the host vehicle to the adjacent vehicle that are detected by sensors mounted on the host vehicle; and   calculating the effect of the slipstream for the preceding vehicle and the adjacent vehicle based on the size and the speed of the preceding vehicle and the size and the speed of the adjacent vehicle.   
     
     
         9 . The display control method according to  claim 7 , further comprising
 controlling an operation of the head-up display device to project the first marks on both sides of the image of the preceding vehicle and the second marks on both sides of the image of the adjacent vehicle.   
     
     
         10 . The display control method according to  claim 7 , further comprising
 controlling an operation of the head-up display device to project an image of the traveling lane and an image of the adjacent lane, wherein   the first marks are displayed on the windshield to extend along the image of the traveling lane, and   the second marks are displayed on the windshield to extend along the image of the adjacent lane.